Pebble 2: Fix Pebble Classic FW 3.x app variant being priorized over native Pebble 2 app variant

Fixes #475

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/pebble/PBWReader.java

@@ -124,10 +124,12 @@ public class PBWReader {
 
                 ZipInputStream zis = new ZipInputStream(afin);
                 ZipEntry ze;
+                boolean found = false;
                 try {
                     while ((ze = zis.getNextEntry()) != null) {
                         if (ze.getName().startsWith(dir)) {
                             platformDir = dir;
+                            found = true;
                             break;
                         }
                     }
@@ -135,6 +137,9 @@ public class PBWReader {
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
+                if (found) {
+                    break;
+                }
             }
 
             if (platform.equals("chalk") && platformDir.equals("")) {